I just got my XLT memorial day weekend. I am still learning this new detector. My previous detectors have included the eagle spectrum, the 6000 di, the 4000 d, and the very old 1 d/b. I have found more nickles with my XLT (one roll returned the the bank, and working on second one), then I think in my previous 23 years of detecting. I use the coin mode. I have noticed that nickel hits are usually in the 17-22 range. Anything higher is usually a pull tab, and lower is usually foil. Lastnight, I even got nickle hits twice that were right on top of pull tabs, another was a quarter in the same hole as a pull tab. So not only does this machine pick out the nickles when its close to junk, it picks out other stuff when its in the same hole as junk.
Anthony